U.S. patent number 8,087,843 [Application Number 12/435,571] was granted by the patent office on 2012-01-03 for liquid dentifrice dispensing toothbrush.
Invention is credited to Frank Ottaviani, Todd Spinelli.
United States Patent |
8,087,843 |
Ottaviani , et al. |
January 3, 2012 |
Liquid dentifrice dispensing toothbrush
Abstract
A dentifrice dispensing toothbrush for applying a predetermined
measured amount of liquid dentifrice from a reservoir of liquid
dentifrice into the toothbrush bristles by means of an in integral
pump. Liquid dentifrice may be refilled using the handle portion of
the toothbrush.
Inventors: |
Ottaviani; Frank (Astoria,
NY), Spinelli; Todd (Astoria, NY) |
Family
ID: |
43050308 |
Appl.
No.: |
12/435,571 |
Filed: |
May 5, 2009 |
Prior Publication Data
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Document
Identifier |
Publication Date |
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US 20100284726 A1 |
Nov 11, 2010 |
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Current U.S.
Class: |
401/188R;
15/22.1; 401/278 |
Current CPC
Class: |
A46B
11/0079 (20130101); A46B 11/0065 (20130101); A46B
11/0041 (20130101); A46B 2200/1066 (20130101) |
Current International
Class: |
A46B
11/02 (20060101); A61C 17/00 (20060101) |
Field of
Search: |
;401/188R,278
;15/22.1 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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523340 |
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Apr 1956 |
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CA |
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2 915 066 |
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Oct 2008 |
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FR |
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864439 |
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Apr 1961 |
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GB |
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2.215.593 |
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Sep 1989 |
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GB |
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2 392 377 |
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Mar 2004 |
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GB |
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2006/019289 |
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Feb 2006 |
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WO |
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2010/128975 |
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Nov 2010 |
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WO |
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Primary Examiner: Canfield; Robert
Attorney, Agent or Firm: Kroll; Michael I.
Claims
What is claimed is new and desired to be protected by letters
patent and is set forth in the appended claims:
1. A dentifrice dispensing toothbrush comprising: a) a housing, the
housing having a pump in communication with a holding chamber, a
first check valve between said pump and said holding chamber, said
pump having a pump nipple with a liquid dentifrice reservoir
attached thereon, the liquid dentifrice reservoir is a collapsible
bag, a check valve positioned between said collapsible bag and said
pump, the housing having a removable cap to access said liquid
dentifrice reservoir; b) a head portion removeably attached to said
housing, the head portion having bristles thereon, the head portion
having a conduit in communication with said holding chamber, said
conduit in communication with at least one opening in said
bristles, a check valve positioned between said head portion and
said holding chamber; and c) a pump actuator extending through a
side of said housing.
2. The dentifrice dispensing toothbrush of claim 1, wherein the
pump nipple has a plurality of outwardly extending ridges to secure
the liquid dentifrice reservoir thereon.
3. The dentifrice dispensing toothbrush of claim 1, wherein the
actuator is a pliable button.
4. A dentifrice dispensing toothbrush comprising: a) a housing, the
housing having a pump in communication with a holding chamber, a
first check valve between said pump and said holding chamber, said
pump having a pump nipple with a liquid dentifrice reservoir
attached thereon, the liquid dentifrice reservoir is a collapsible
bag, a check valve positioned between said collapsible bag and said
pump, the housing having a removable cap to access said liquid
dentifrice reservoir; b) a head portion removeably attached to said
housing, the head portion having bristles thereon, the head portion
having a conduit in communication with said holding chamber, said
conduit in communication with at least one opening in said
bristles, a check valve positioned between said head portion and
said holding chamber; c) a pump actuator extending through a side
of said housing; and d) said liquid dentifrice reservoir having a
check valve mateable to a refill canister for the purpose of
transferring contents of said refill canister to said liquid
dentifrice reservoir.
5. The dentifrice dispensing toothbrush of claim 4, wherein the
pump nipple has a plurality of outwardly extending ridges to secure
the liquid dentifrice reservoir thereon.
6. The dentifrice dispensing toothbrush of claim 4, wherein the
actuator is a pliable button.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates generally to toothbrush and, more
specifically, to a liquid dentifrice dispensing toothbrush for
applying a measured dose of liquid dentifrice from a reservoir of
liquid dentifrice into the toothbrush bristles by means of an
integral pump.
2. Description of the Prior Art
There are other tooth brushing devices designed for dispensing
dentifrice. Typical of these is U.S. Pat. No. 1,676,601 issued to
Cavanaugh on Jul. 10, 1928.
Another patent was issued to Burgin on Apr. 24, 1956 as U.S. Pat.
No. 2,743,042. Yet another U.S. Pat. No. 2,807,818 was issued to
Taylor on Oct. 1, 1957 and still yet another was issued on Dec. 2,
1980 to Meyer et al. as U.S. Pat. No. 4,236,651.
Another patent was issued to Hassan on Oct. 24, 1989 as U.S. Pat.
No. 4,875,791. Yet another U.S. Pat. No. 5,346,324 was issued to
Kuo on Sep. 13, 1994. Another was issued to Voight on Jan. 17, 1995
as U.S. Pat. No. 5,382,106 and still yet another was issued on Jun.
23, 1998 to Podolsky as U.S. Pat. No. 5,769,585.
Another patent was issued to Kuo on Jun. 8, 1999 as U.S. Pat. No.
5,909,977. Yet another U.S. Pat. No. 5,918,995 was issued to
Puurunen on Jul. 6, 1999. Another was issued to Spies et al. on
Jun. 5, 2001 as U.S. Pat. No. 6,241,412 and still yet another was
issued on Jan. 20, 2004 to Dillingham et al. as U.S. Pat. No.
6,679,642.
Another patent was issued to Jang on Sep. 27, 2005 as U.S. Pat. No.
6,948,875. Yet another Canadian Patent No. CA523340 was issued to
Neuls on Apr. 3 1961. Another was issued to Horitz on Apr. 6, 1961
as U.K. Patent No. GB864,439 and still yet another was issued on
Sep. 27, 1989 to Douglas as U.K. Patent No. GB2215593.
U.S. Pat. No. 1,676,601
Inventor: Leo C. Cavanaugh
Issued: Jul. 10, 1928
This invention relates to an improvement in fountain toothbrushes.
A soft, cleansing, and antiseptic brush is provided for the teeth
and gums, which is antiseptically self-filled and may be easily and
quickly used for cleansing the teeth.
U.S. Pat. No. 2,743,042
Inventor: Luther B. Burgin
Issued: Apr. 24, 1956
This invention relates in general to improvements in tooth brushes,
more particular to an improved fountain tooth brush. This invention
provides an improved tooth brush which includes a handle containing
tooth brush, the handle having associated therewith a pump for
pumping tooth paste into a hollow head portion of the tooth brush
for supplying tooth paste to bristles thereof.
U.S. Pat. No. 2,807,818
Inventor: Christopher L. Taylor
Issued: Oct. 1, 1957
The present invention relates to improvements in toothbrushes, and
more particularly to an improved combined toothbrush dentifrice
dispenser. The main object to the invention is to provide an
improved combination toothbrush and dentifrice dispenser which is
adapted for use with either a liquid dentifrice, a powdered
dentifrice, or a toothpaste.
U.S. Pat. No. 4,236,651
Inventor: Walter Meyer et al.
Issued: Dec. 2, 1980
A dispenser device comprising a reservoir for a flowable or fluent
filled material as well as a piston pump equipped with a valve
arrangement. The valve arrangement is coaxially dispositioned with
regard to the pump and possesses parts connected with the piston
and parts connected with the cylinder of the piston pump.
U.S. Pat. No. 4,875,791
Inventor: Shawky A. Hassan
Issued: Oct. 24, 1989
A liquid dispensing brush primarily used in dispensing liquid
cleanser. The brush includes a reservoir which holds a
predetermined amount of liquid cleanser and an arm with a
longitudinal passage to deliver the cleanser from the reservoir to
the head of the brush. The head of the brush comprises several sets
of bristles and outlet means to allow the liquid cleanser to flow
from the longitudinal passage to the bristles. In order to
effectuate the flow of liquid cleanser from the reservoir to the
bristles, means are provided whereby the brush is tilted to raise
the reservoir higher than the head of the brush. A cap, with a
flexible clip for easy storage, provides the tilting necessary to
effectuate fluid flow. In use, the brush is placed on a flat
surface in the tilted position for a predetermined length of time
to allow a sufficient amount of liquid cleanser to flow to the
bristles.
U.S. Pat. No. 5,346,324
Inventor: Youti Kuo
Issued: Sep. 13, 1994
A dentifrice dispensing toothbrush is described which utilizes a
compressible elastic button to pump a controlled quantity of
dentifrice material from a replaceable cartridge to the brush head.
The toothbrush locks itself to prevent further pumping of
dentifrice material when its replaceable cartridge is nearly empty.
The self locking mechanism eliminates the formation of voids in the
dentifrice material and consequent pump failure when the spent
cartridge is replaced. In one embodiment, a cover is provided which
protects the brush head, bristles, pumping mechanism and other
parts of the toothbrush. The cover also seals the conduit which
supplies dentifrice material to the brush head to prevent it from
becoming clogged with dried dentifrice material during periods of
non use and to prevent accidental compression of the button. The
compressible elastic button is part of a pump assembly which also
includes a pump chamber, a partition which divides the pump chamber
into an intake compartment and a discharge compartment, a one way
check valve for an opening in the base of the pump chamber to
control the flow of dentifrice material from the cartridge to the
pump chamber and an opening in the partition between the intake and
discharge compartments. A plug is attached to the top of a follower
disc which is positioned in the cartridge. When the cartridge is
nearly depleted, the plug locks the toothbrush by blocking the
dispensing movement of the dentifrice material.
U.S. Pat. No. 5,382,106
Inventor: Bernard Voigt
Issued: Jan. 17, 1995
An improved toothbrush with a teeth cleansing substance dispensing
system is provided, which consists of a mechanism in cooperation
with a compartment in an enlarged handle, which will dispense some
teeth cleansing substance through a channel in a neck and head and
out through at least one lateral passageway into bristle groups, so
that the bristle groups can clean teeth. An apparatus is also in
cooperation with the channel in the head and neck for sealing the
at least one lateral passageway, when not in use. This stops the
flow of the teeth cleansing substance and prevents germs, bacteria,
water and other foreign elements from contaminating the teeth
cleansing substance left in the channel and the compartment.
U.S. Pat. No. 5,769,585
Inventor: Grigory Podolsky
Issued: Jun. 23, 1998
A toothbrush is formed with a resilient annular pump having a
conical chamber formed by an inner annular surface of the pump and
two axially spaced and swingable flap valves inclined with respect
to the longitudinal axis of the toothbrush in respective closing
positions thereof and with a projection between a piston of the
pump an one of the flap valves preventing automatic delivery of the
paste into the chamber and creating sufficient pressure for pushing
the paste toward the bristles.
U.S. Pat. No. 5,909,977
Inventor: Youti Kuo
Issued: Jun. 8, 1999
A dentifrice dispensing toothbrush utilizes a refillable cartridge
for storing dentifrice material and a compressible elastic button
for pumping dentifrice material from the cartridge to a brush head.
The refillable cartridge has special adaptive features for mounting
to different sized openings of toothpaste tubes to facilitate
cartridge refilling and venting entrapped air. The essential
components of the dentifrice dispensing toothbrush include 1) a
brush head having an outlet opening therethrough and a series of
bristles; 2) a pump assembly which has a pump chamber, an elastic
compressible button and a base having a flap check valve; 3) a
housing for attaching a refillable cartridge; 4) a refillable
cartridge having an adaptive annular lip on its top opening for
mating with the opening of a toothpaste tube and a plurality of
shallow grooves for venting entrapped air, and a two-way follower
disc for packing the dentifrice material. The dentifrice dispensing
toothbrush optionally includes 5) a venting flip-cap for attachment
to a toothpaste tube for releasing entrapped air when a cartridge
is being refilled; and 6) a brush cover which seals the outlet
opening of the brush head.
U.S. Pat. No. 5,918,995
Inventor: Juha-Pekka Puurunen
Issued: Jul. 6, 1999
A pump toothbrush includes a brush portion, a grip portion and an
intermediate arm portion. The grip portion includes a container
portion for dental cleansing medium and is connected to the brush
portion by way of a pump device to feed the dental cleansing medium
into the brush portion through the intermediate arm portion. The
pump device includes a frame portion that is arranged between the
container portion and the arm portion. The frame portion is
provided with a recess located perpendicularly with respect to the
longitudinal axis of the pump toothbrush. An adjusting body forming
an inner portion of the pump device is fitted into the recess in
the frame portion. The adjusting body possesses an axial outwards
open intermediate space that functions as a chamber in the pump
device. The intermediate space in the adjusting body is closed by a
flexible pressure membrane. In addition, inlet and outlet valves
are arranged in the adjusting body to enable connection between and
transfer of dental cleansing medium from the container portion to
the brush portion through the inlet and outlet valves when pressure
is applied to the flexible pressure membrane.
U.S. Pat. No. 6,241,412
Inventor: Norbert Spies et al.
Issued: Jun. 5, 2001
An improved toothbrush is disclosed having a supply of liquid
dentifrice located within the handle of the toothbrush, and a
dispenser mechanism for dispensing the stored dentifrice to the
bristles of the toothbrush when the need arises. The
dentifrice-dispensing toothbrush is adapted to utilize replaceable,
dentifrice-storing cartridges. In another preferred embodiment a
dentifrice-dispensing toothbrush is provided which is effective in
operation, durable, attractive in appearance, and relatively
inexpensive to manufacture.
U.S. Pat. No. 6,679,642
Inventor: John B. Dillingham et al.
Issued: Jan. 20, 2004
A toothbrush having a water reservoir in the handle and squeezable
to force water therefrom through a plurality of spaced apart
orifices located at the base of bristles that project from the head
of the brush.
U.S. Pat. No. 6,948,875
Inventor: Hyo Sol Jang
Issued: Sep. 27, 2005
A toothbrush device is provided, which includes a brush, a
toothpaste storing case, and a push-button pump disposed between
the brush and the toothpaste storing case; a first check valve
disposed between the toothpaste storing case and the pump, a second
check valve disposed between the first check valve and the
toothpaste storing case, and a first spring disposed between the
first and second check valves; wherein the first check valve
includes a second spring and a piston in sequence in a direction
away from the pump, and has a working element which includes a rod
with movement grooves at a first end thereof and a securing part at
a second end thereof.
Canada Patent Number CA523340
Inventor: Albert W. Neuls
Published: Apr. 3, 1956
Our invention relates to new and useful improvements in tooth
brushes, the principal object and essence of our invention being to
provide a relatively simply structure whereby the dentifrice is
adapted to be stored within a disposable receptacle which acts as
the handle of the tooth brush and is dispensed by plunger action to
the bristle area.
U.K. Patent Number GB864,439
Inventor: Karel Horitz
Published: Apr. 6, 1961
Dentifrice is discharged to the bristles G of a toothbrush from a
pressurized container P forming the handle of the brush by screwing
the container into a socket F integral with the rear of the stem B
of the brush so that the valve M is forced clear of the valve
seating N in the discharge nozzle J of the container when the
fluted head K of the valve contacts a sealing flange E of a
flexible tube C extending through and beyond a bore S in the stem
and head of the brush. The valve head and stem are surrounded by a
tube of resilient material H that is compressed when the container
is screwed into the stem to form with the flange an adequate seal
between the container and the stem.
U.K. Patent Number GB2215593
Inventor: George Clark Douglas
Issued: Sep. 27, 1989
The invention relates to a dispensing and applicator device
particularly suited for use by handicapped persons. Where a paste
is to be applied to a brush or other applicator, say toothpaste
onto a brush head, difficulties may be encountered by the disabled
or blind. The device comprises a hollow body portion (2) forming a
handle, said body portion adapted to contain compositions having a
paste or cream-like consistency and to permit extrusion of said
compounds from an outlet (6) of said body portion by a manually
operated lever or press-button (4), wherein the outlet of the body
portion communicates with a hollow dispensing portion (8) the
latter being provided with applicator means (14), such as a brush
head, there being provided apertures (12) through a wall area of
the dispensing portion at said applicator means; giving
communication between the interior of the hollow dispensing portion
and the applicator means. While these toothbrushes may be suitable
for the purposes for which they were designed, they would not be as
suitable for the purposes of the present invention, as hereinafter
described.
SUMMARY OF THE PRESENT INVENTION
A primary object of the present invention is to provide a liquid
dentifrice dispensing toothbrush.
Another object of the present invention is to provide a liquid
dentifrice dispensing toothbrush that dispenses a measured amount
of liquid dentifrice to the bristles of the toothbrush.
Yet another object of the present invention is to provide a liquid
dentifrice toothbrush having housing comprising a handle portion
with a removable cap and a head portion.
Still yet another object of the present invention is to provide a
liquid dentifrice toothbrush wherein said head portion is removably
attached.
A further object of the present invention is to provide a liquid
dentifrice toothbrush wherein said head portion has an internal
conduit extending from one distal end to at least one aperture
located in the bristles of the head portion.
A yet further object of the present invention is to provide a
liquid dentifrice toothbrush wherein said handle portion has a
reservoir of liquid dentifrice and a pump assembly for dispensing a
predetermined amount of the liquid dentifrice.
A still yet further object of the present invention is to provide a
liquid dentifrice toothbrush wherein said reservoir of liquid
dentifrice is a collapsible bag.
An additional object of the present invention is to provide a
liquid dentifrice toothbrush wherein said collapsible bag has a one
way valve on one end for refilling the bag and an aperture sealably
mateable to the pump thereby forming an airtight reservoir of
liquid dentifrice.
Another object of the present invention is to provide a liquid
dentifrice toothbrush wherein said pump assembly comprises housing
having a nipple, a plurality of chambers and one way valves all in
conduit communication and an actuator for creating positive and
negative pressure within said pump and thereby moving a
predetermined amount of liquid dentifrice from the collapsible bag
to a pump egress port.
Yet another object of the present invention is to provide a liquid
dentifrice toothbrush wherein said actuator is a pliable
button.
Still yet another object of the present invention is to provide a
liquid dentifrice toothbrush wherein said pump nipple provides
means for attaching the collapsible bag to the pump.
A further object of the present invention is to provide a liquid
dentifrice toothbrush wherein said plurality of chambers comprises
a dosage chamber and a holding chamber.
A yet further object of the present invention is to provide a
liquid dentifrice toothbrush wherein said dosage chamber
incorporates the pliable button and a pair of one way valves
positioned on each end so that when the button is depressed
positive pressure moves the contents of the dosage chamber through
an egress one way valve into the holding chamber and upon button
release creates a vacuum within the dosage chamber drawing a
predetermined amount of liquid dentifrice from the collapsible bag
through the ingress one way valve into the dosage chamber.
A still yet further object of the present invention is to provide a
liquid dentifrice toothbrush wherein said holding chamber has a one
way valve situated on its egress end preventing contamination of
its contents between usage's of the liquid dentifrice dispensing
toothbrush.
An additional object of the present invention is to provide a
liquid dentifrice toothbrush wherein said handle portion has a
removable cap providing access to a collapsible bag refill fitting
for refilling the liquid dentifrice reservoir.
Another object of the present invention is to provide a liquid
dentifrice toothbrush having an attachable refill canister mateable
to the collapsible bag refill fitting sealably engaging one to the
other for transferring the contents of the dentifrice refill
canister into the toothbrush's liquid dentifrice reservoir.
Additional objects of the present invention will appear as the
description proceeds.
The present invention overcomes the shortcomings of the prior art
by providing a dentifrice dispensing toothbrush which dispenses a
predetermined measured amount of liquid dentifrice by means of a
pump.
The foregoing and other objects and advantages will appear from the
description to follow. In the description reference is made to the
accompanying drawings, which forms a part hereof, and in which is
shown by way of illustration specific embodiments in which the
invention may be practiced. These embodiments will be described in
sufficient detail to enable those skilled in the art to practice
the invention, and it is to be understood that other embodiments
may be utilized and that structural changes may be made without
departing from the scope of the invention. In the accompanying
drawings, like reference characters designate the same or similar
parts throughout the several views.
The following detailed description is, therefore, not to be taken
in a limiting sense, and the scope of the present invention is best
defined by the appended claims.
BRIEF DESCRIPTION OF THE DRAWING FIGURES
In order that the invention may be more fully understood, it will
now be described, by way of example, with reference to the
accompanying drawing in which:
FIG. 1 is a perspective view showing the main components of the
present invention including end cap, handle, pump button, head and
bristles;
FIG. 2 is a block diagram of the toothbrush showing the detailed
components of the present invention including position of liquid
dentifrice refill, check valves, dosage chamber, holding chamber,
actuator pump and flow direction;
FIG. 3 is a side view of the toothbrush showing the toothbrush hand
grip on the handle of the toothbrush;
FIG. 4 is a side sectional view of the toothbrush showing the
internal components of the present invention with pump
assembly;
FIG. 5 is a side view of the toothbrush pump assembly showing the
pump assembly components including dentifrice bag, inlet, pump
button and outlet;
FIG. 6 is a side exploded view of the toothbrush pump assembly
showing the one way valves;
FIG. 7 is a side detailed view of the toothbrush pump assembly
showing the path the dentifrice follows once the push button of the
pump assembly is pressed;
FIG. 8 is a side detailed view of the toothbrush pump assembly
showing the collapsible bag refilling the pump assembly with fresh
dentifrice; and
FIG. 9 is a side detailed view of the toothbrush pump assembly
showing a depressed push button when the liquid dentifrice refill
needs to be replaced.
DESCRIPTION OF THE REFERENCED NUMERALS
Turning now descriptively to the drawings, in which similar
reference characters denote similar elements throughout the several
views, the figures illustrate the Liquid Dentifrice Dispensing
Toothbrush of the present invention. With regard to the reference
numerals used, the following numbering is used throughout the
various drawing figures.
Liquid Dentifrice Dispensing Toothbrush of the present
invention
12 handle housing
14 pump actuator
16 removable brush head
18 brush bristles
20 end cap
22 check valve
24 flow direction
26 liquid dentifrice
28 conduit
30 brush
32 holding chamber
33 dosage chamber
34 dentifrice collapsible bag
35 dentifrice bag aperture
36 brush bristle aperture
38 liquid dentifrice refill
39 liquid dentifrice refill fastener
40 grip
42 pump assembly
44 cavity
45 pump egress port
46 inlet
48 pump nipple
50 pressure
52 vacuum
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
The following discussion describes in detail one embodiment of the
invention (and several variations of that embodiment). This
discussion should not be construed, however, as limiting the
invention to those particular embodiments, practitioners skilled in
the art will recognize numerous other embodiments as well. For
definition of the complete scope of the invention, the reader is
directed to appended claims.
FIG. 1 is a perspective view of the present invention 10. Shown is
a perspective view of the present invention 10 comprising a
toothbrush having a handle portion 12 with end cap 20 and a
removable brush head 16 having bristles 18 and a pump assembly 42
with pump actuator 14 for displacing and holding liquid dentifrice
26 integrated into its handle 12.
FIG. 2 is a block diagram of the toothbrush of the present
invention 10. Shown is a block diagram of the present invention 10
comprising a toothbrush having a handle 12 portion and a removable
brush head portion 18. The handle 12 houses a dentifrice
collapsible bag 34, a plurality of check valves 22 and reservoirs,
including a dosage chamber 33 and holding chamber 32, each chamber
using check valves as ingress and egress one way valves in fluid
communication with a removable brush head 18 conduit 28 terminating
in a plurality of apertures 36 located at the base of the brush 30.
Also shown is a liquid dentifrice bag refill 38 having liquid
dentifrice refill fastener 39 mateable to the handle end check
valve 22 once the end cap 20 is removed.
FIG. 3 is a side view of the liquid dentifrice dispensing
toothbrush. Shown is a side view of the present invention 10
depicting the liquid dentifrice dispensing toothbrush comprising a
handle 12 portion and a removable brush head 18 portion with the
handle 12 portion housing a pump assembly 42 having a pump actuator
14 within the wall of the handle 12. Also shown is the handle 12
having an end cap 20 providing access for refilling the liquid
dentifrice reservoir.
FIG. 4 is a side sectional view of the present invention 10. Shown
is a side sectional view of the present invention 10 displaying the
internal components of the device including a pump assembly 42
within a cavity 44 provided by the handle 12 housing for holding,
pumping and delivering dentifrice through a provided conduit 28 and
to the use via its apertures 36.
FIG. 5 is a side view of the pump assembly of the present invention
10. Shown is a side view of the pump assembly 42 having a nipple 48
for attachment thereto of a liquid dentifrice collapsible bag 34,
via aperture 35, for holding and supplying liquid dentifrice 24 to
the pump assembly 42 when needed.
FIG. 6 is a side exploded view of the pump assembly 42 of the
present invention 42. Shown is a side exploded view of the pump
assembly 42 comprising housing having a plurality of chambers and
one way valves 22 with a pump actuator 14 providing means for
moving the liquid dentifrice from the reservoir of liquid
dentifrice to the brush bristles.
FIG. 7 is a side detailed view of the pump assembly 42 of the
present invention 10. Shown is a side detailed view of the pump
assembly 42 of the present invention 10 depicting that when the
pump actuator 14 is depressed, pressure 54 moves the liquid
dentifrice 24 from the dosage chamber 33 to the holding chamber 32
with the holding chamber contents moved to the brush bristles.
FIG. 8 is a side detailed view of the pump assembly 42 of the
present invention 10. Shown is a side detailed view of the pump
assembly 42 of the present invention 10 depicting that when the
pump actuator 14 returns to its original position a vacuum is
created within the dosage chamber causing the dosage chamber 33 to
refill with fresh liquid dentifrice 24 from the reservoir of liquid
dentifrice.
FIG. 9 is a side detailed view of the pump assembly 42 of the
present invention 10. Shown is a side detailed view of the pump
assembly 42 of the present invention 10 depicting that when the
pump actuator 14 is depressed with no dentifrice remaining in
dentifrice collapsible bag 34, the vacuum created will keep the
pliable button 14 in the depressed position thereby serving as an
indicator that the dentifrice collapsible bag needs to be
refilled.
* * * * *